Myth #2: Women who lift weights will bulk up.

Truth: While on a weight lifting program, the right hormones (testosterone) are necessary in order to bulk up. Women's testosterone levels are much lower than men's, so in most cases, they are not capable of building large muscles. In fact, since muscle takes up less room than fat, women tend to lose inches when they strength train. So in addition to the physical benefits (increased metabolism, decreased risk of osteoporosis, increased strength), strength training will help you slim down too!